EN39LV010 Datasheet, PDF (9/36 Pages) Eon Silicon Solution Inc. – 1 Megabit (128K x 8-bit ) 4 Kbyte Uniform Sector, CMOS 3.0 Volt-only Flash Memory

EN39LV010
COMMAND DEFINITIONS
The operations of the EN39LV010 are selected by one or more commands written into the
command register to perform Read/Reset Memory, Read ID, Read Sector Protection, Program,
Sector Erase, Chip Erase, Erase Suspend and Erase Resume. Commands are made up of data
sequences written at specific addresses via the command register. The sequences for the
specified operation are defined in the Command Definitions table (Table 5). Incorrect addresses,
incorrect data values or improper sequences will reset the device to Read Mode.
Table 5. EN39LV010 Command Definitions
Command
Sequence
Read
Reset
Manufacturer ID
Bus Cycles
1^st
2^nd
3^rd
4^th
5^th
6^th
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Add Data Add Data Add Data Add Data Add Data Add Data
1 RA RD
1 Xxx F0
4 555 AA 2AA 55
555 90
000 7F
100 1C
Device ID
4 555 AA 2AA 55 555 90 X01 D5
Sector Protect Verify
4 555 AA 2AA 55
555 90
(SA) 00/
X02 01
Program
4 555 AA 2AA 55 555 A0 PA PD
Chip Erase
6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10
Sector Erase
Erase Suspend
Erase Resume
6 555 AA 2AA 55
1 xxx B0
1 xxx 30
555 80
555 AA
2AA 55 SA 30
Address and Data values indicated in hex
RA = Read Address: address of the memory location to be read. This is a read cycle.
RD = Read Data: data read from location RA during Read operation. This is a read cycle.
PA = Program Address: address of the memory location to be programmed. X = Don’t-Care
PD = Program Data: data to be programmed at location PA
SA = Sector Address: address of the Sector to be erased or verified. Address bits A16-A12 uniquely select any Sector.
Reading Array Data
The device is automatically set to reading array data after power up. No commands are required to
retrieve data. The device is also ready to read array data after completing an Embedded Program or
Embedded Erase algorithm.
Following an Erase Suspend command, Erase Suspend mode is entered. The system can read array data
using the standard read timings, with the only difference in that if it reads at an address within erase
suspended sectors, the device outputs status data. After completing a programming operation in the
Erase Suspend mode, the system may once again read array data with the same exception.
The Reset command must be issued to re-enable the device for reading array data if DQ5 goes high, or
while in the autoselect mode. See next section for details on Reset.
This Data Sheet may be revised by subsequent versions 9
or modifications due to changes in technical specifications.
©2003 Eon Silicon Solution, Inc., www.eonssi.com
Rev. B, Issue Date: 2009/03/16